Digital model of the lower receiver of the VFC SR-25, reproduced at 1:1 scale with a maximum deviation of 0.1% from the original.
Designed for designers, makers, and players who need an accurate reference base for modifications, HPA kit adaptations, or custom 3D printing on the SR-25 platform.
Model Features
- Scale: 1:1 relative to the original VFC SR-25 lower.
- Maximum deviation: 0.1% — geometry faithful to the original body.
- Available format: STEP (compatible with Fusion 360, FreeCAD, SolidWorks, Rhino, and any professional CAD software).
- Author logo: included in the model as a design element.
What is this file for?
- Design base for CAD modifications on the SR-25 platform.
- Dimensional reference for HPA kit adaptations.
- Starting point for 3D printing parts compatible with the VFC SR-25 lower.
- Compatibility verification between aftermarket components and the original lower.
STEP Format · Why?
The STEP format is universal in industrial design and CAD: it preserves geometry, maintains exact tolerances, and is editable in any professional or free software. Unlike STL, it allows non-destructive model editing.
Author Note · Logo
🙏 This model includes the author’s logo integrated into the design.
If you use this file as a base for your projects, keeping the logo is a way to support the work of measurement, digitization, and model cleanup.
It is not mandatory.
Verified Compatibility
This lower is compatible with the Alignment Kits from this project for the SR-25 platform:
- SR-25 Alignment Kit (available on the project website).
For HPA conversion, it is recommended to check the alignment kits compatible with SR-25 available at:
https://lab.sychev.xyz/products?slug=hpa-weapon-sr25-dmr
Manuals
Additional information is available in the Manuals section of the website or on the project’s Discord server.
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